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Lennox

OEM Lennox Scroll Compressor 19,500 BTU R-410A 1PH — 12Y56

SKU: LNX-12Y56 Brand: Lennox
$389.95 $529.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Lennox 12Y56 is a genuine OEM Interlink APB020KAB scroll compressor rated at 19,500 BTUH (approximately 1.6 tons) for 208/230V, single-phase, R-410A systems. This compressor is the heart of your outdoor unit, pressurizing and circulating R-410A refrigerant to reject heat and keep the cooling cycle running. Its scroll construction delivers smooth, efficient, and reliable operation as a direct factory replacement for compatible Lennox condensing units and heat pumps.

Common failure symptoms: A compressor nearing the end of its life often produces no cooling, warm air at the vents, repeated breaker trips, loud grinding or humming from the outdoor unit, short-cycling, or a hum with no start. Seized bearings, shorted windings, or lost compression are the usual culprits.

Why OEM matters: The genuine Lennox 12Y56 is matched to the precise displacement, refrigerant rating, and electrical characteristics your system was engineered around. Using the factory-specified OEM compressor protects your equipment's rated efficiency and capacity, ensures proper fit and controls compatibility, and helps keep your Lennox warranty coverage in force where generic parts cannot.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Compressor fit my Lennox OEM Lennox Scroll Compressor 19,500 BTU R-410A 1PH — 12Y56?
Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Scroll Compressor 19,500 BTU R-410A 1PH — 12Y56. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the compressor on my Lennox OEM Lennox Scroll Compressor 19,500 BTU R-410A 1PH — 12Y56?
Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.
What symptoms mean I need a new compressor?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this compressor compatible with Bryant or Payne too?
Many Lennox parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Lennox compressor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
HVAC Parts Specialist — Online